for (filename in c('figure-1-divergence-public-issues.R',
    'figure-1-divergence-public-scaled.R',
    'figure-1-divergence-senate.R',
    'figure-2-scaled-state-party-conservatism-ny-ga.R',
    'figure-3-nationalization.R',
    'figure-4-dimensionality.R')) {
  source(filename, echo = TRUE)
}
